The Development of Perpendicular Magnetic Recording Tape By Roll-to-Roll In-Line Sputtering

Author

Sekiguchi, N. ; Aizawa, Takehiro ; Terui, Hikaru ; Ozaki, Takashi ; Murakami, H. ; Endo, T. ; Tachibana, Junichi ; Hiratsuka, Ryoichi ; Inoue, Shingo

Author_Institution

Sendai Technol. Center, Sony Corp., Tagajo, Japan

Volume

50

Issue

11

fYear

2014

fDate

Nov. 2014

Firstpage

1

Lastpage

4

Abstract

A method was developed that was capable of producing a 1000 m length of sputter-deposited magnetic tape using a roll-to-roll in-line sputtering system. This method produced a magnetic recording structure having perpendicular magnetic orientation and uniform grain size, which was observed over the full length of the sputtered area. The potential read/write performance of 60 Gb/in² areal density and good durability were also observed. Therefore, the possibility of utilizing sputter-deposited tape production for high recording density media was evident.

Keywords

perpendicular magnetic recording; sputtering; areal density; high recording density media; magnetic recording structure; perpendicular magnetic orientation; read performance; roll-to-roll in-line sputtering; size 1000 m; sputter-deposited magnetic tape; uniform grain size; write performance; Impurities; Magnetic properties; Media; Metals; Perpendicular magnetic recording; Sputtering; Granular; in-line; perpendicular orientation; roll-to-roll; sputter-deposited media;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2328432

Filename

6971336